Novolin insulin is a harsh and fast acting insulin and is not suitable for cats.
I would ask your vet to swap you to a more suitable insulin such a Lantus or Prozinc
With Novolin need to feed
I hour before giving any insulin so that your kitty has food aboard to counter the insulin.
With ketones in the picture it is really important that your kitty eats lots of food. Ketones form when there is not enough food and not enough insulin for the body to properly utilise the food to create energy. The result is ketones form. So the treatment to make sure your kitty eats lots of food and doesn’t miss his insulin dose.
However I would be very reluctant to give a Novolin without food.
Try and get him to eat so you can give the 1/2 unit of Novolin. If he doesn’t eat enough, but does eat some you might be able to give 1/4 unit. You will also need to try and get him to eat during the cycle as well. Offer any food he will eat,,,don’t worry if it is not a food for diabetes.
Do you have honey or Karo at home to rub in his gums if he drops low?
Are the test strips the vet gave you the ones to check ketones?
Was the antinausea medication an injection? You will need to ask the vet for some tablets to give at home as well.
I would go back to the vet tomorrow and tell him
- Your kitty is not eating and you need another antinausea injection AND some antinausea tablets to have at home.
- Ask about swapping to a more suitable insulin such a Lantus or Prozinc.
- Check hydration
- Check ketones
- Ask vet to give more sub Q fluids